Results 21 to 30 of about 68,031 (152)

Transient Frequency Stability Emergency Control for the Power System Interconnected With Offshore Wind Power Through VSC-HVDC

open access: yesIEEE Access, 2020
For the power system interconnected with the large-scale offshore wind power through VSC-HVDC, such as SZ power grid, it may be engaged with transient frequency stability and lack of related control due to the randomness, fluctuation and intermittence of
Ancheng Xue   +5 more
doaj   +1 more source

Renewable Sources Of Energy In Farming

open access: yesJournal of Education, Health and Sport, 2018
Babula Mateusz. Renewable sources of energy in farming. Journal of Education, Health and Sport. 2018;8(9):951-960 eISNN 2391-8306. DOI http://dx.doi.org/10.5281/zenodo.1419531 http://ojs.ukw.edu.pl/index.php/johs/article/view/5978 The journal has had 7 points in Ministry of Science and Higher Education parametric evaluation.
openaire   +3 more sources

Renewable Energy Sources

open access: yes, 2016
Sustainability concerns resulting from the consumption of natural resources, life-threatening levels of pollution, global warming, climate change and the ever-increasing worldwide energy use have brought renewable energy sources to forefront. Given the possibility of depletion of fossil fuels in the near future, the utilization of clean and renewable ...
Savitskaya, I. V.   +1 more
  +5 more sources

A New Quantitative Analysis Method for Overvoltage in Sending End Electric Power System With UHVDC

open access: yesIEEE Access, 2020
With the development of renewable electric power generation and ultra-high voltage direct current (UHVDC) transmission, the transient overvoltage in the sending end electric power system with UHVDC occurs, but it is lack of quantitative transient voltage
Ancheng Xue   +8 more
doaj   +1 more source

Optimal Dispatch of Multiple Photovoltaic Integrated 5G Base Stations for Active Distribution Network Demand Response

open access: yesFrontiers in Energy Research, 2022
Multiple 5G base stations (BSs) equipped with distributed photovoltaic (PV) generation devices and energy storage (ES) units participate in active distribution network (ADN) demand response (DR), which is expected to be the best way to reduce the energy ...
Xiang Zhang   +9 more
doaj   +1 more source

A New Transient Frequency Acceptability Margin Based on the Frequency Trajectory

open access: yesEnergies, 2018
When the electric power system is disturbed, the transient frequency deviation may be large and harmful to its stable operation, especially in some small power systems.
Ancheng Xue   +5 more
doaj   +1 more source

Performance evaluation of oscillation stability analysis method for direct-drive wind power grid connected system considering control strategy switching

open access: yesInternational Journal of Electrical Power & Energy Systems
In view of the difficulty in evaluating the oscillation stability of direct-drive wind farm integrated power system during fault recovery, this paper proposed an oscillation stability analysis method based on dynamic energy.
Jing Ma   +5 more
doaj   +1 more source

Constrained operation zone of a VSG considering the DC-side power margin

open access: yesThe Journal of Engineering, 2019
Recently, the virtual synchronous generator (VSG) has drawn considerable attention for its function of simulating the electromechanical transient of SG to make converters equip with the characters of inertia, damping, voltage regulating, and frequency ...
Chang Yuan   +3 more
doaj   +1 more source

Short-Circuit Current Calculation and Harmonic Characteristic Analysis for a Doubly-Fed Induction Generator Wind Turbine under Converter Control

open access: yesEnergies, 2018
An accurate calculation of short-circuit current (SCC) is very important for relay protection setting and optimization design of electrical equipment. The short-circuit current for a doubly-fed induction generator wind turbine (DFIG-WT) under excitation ...
Jing Li, Tao Zheng, Zengping Wang
doaj   +1 more source

A pilot protection method for the transmission line of wind farm-flexible DC system based on high-frequency inductance difference coefficients

open access: yesInternational Journal of Electrical Power & Energy Systems
Conventional protection schemes for wind farm-flexible flexible direct current (DC) system transmission lines are susceptible to malfunctions in external fault scenarios and exhibit limited immunity to fault resistance in internal fault scenarios. In the
Jing Ma   +5 more
doaj   +1 more source

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